docs: def _load(self, scale=1.0):
          """Load the SLSTR relative spectral responses
          """
  
          LOG.debug("File: %s", str(self.requested_band_filename))
          ncf = Dataset(self.requested_band_filename, 'r')
  
          wvl = ncf.variables['wavelength'][:] * scale
          resp = ncf.variables['response'][:]
  
          self.rsr = {'wavelength': wvl, 'response': resp}